CONTENTS— C07H. 



PA6S 



Java:'* Xyleborus destruens m]unou& to Tesik .. .. .. 536 



Java : Hyalopeplnis smaragdinus, a new Capsid infesting Tea \ \ 536 



Java : " A Species of Grioceris injurious to Orchids . . . . . , 537 



Java : Notes on Mole-Crickets . . . . . . ] . ][ 537 



Malata : Insect Pests in 1918 . . . . . . [[ [[ 520 



Nevt Zealand : Measures against Orchard Pests . . . . . . 533 



Norway : Insect Pests in 1918 . . . . . . . . [] 533 



POETO Rico : Miscellaneous Insect Pests in 1917-18 *. . .. 514 



Santo Domingo : Oi/Zas/ormieanM8 infesting Sweet Potatoes '. . 517 



Switzerland : The Bionomics of Pieris brassicae . . . . . . 512 



Switzerland : Insect Pests in 1917 53O 



Sumatra : Notes on Epilachna dodecastigma . . . . . . 508 



Sumatra : Notes on Gallohelicus nicotianae infesting Tobacco . . 538 



Tonkin : Coffee and Rice Pests . . , . . . . . . . 518 



Trinidad : Resistance of Sugar-cane Varieties to Froghopper 



Blight 531 



Trinidad : Control of the Cacao Thrips ... . . . . . . 53 1 



U.S.A. : Notes on Bark-beetles . . . . . . . . ' , 605 



U.S.A.: Measures against Pi/rattsfa wit&iZaHs .. .. .. 509 



U.S.A. : Notes on Pelenomus sulcicollis in New York . . . . 507 



U.S.A.: A Campaign against Grasshoppers in Okanogan . . .. 510 



U.S.A.: Measures against i!/mpoasca maZi in Wisconsin .. .. 610 



U.S.A. : PopilUa japoniea, introduced into New Jersey from Japan 511 



U.S.A. : Measures against Aegeria exitiosa in West Virginia . . 512 



U.S.A. : Notes on Lygus spp. in New York . . . . . . . . 516 



U.S.A. : Spraying for Fruit Growers in Michigan 516 



U.S.A. : Measures against Termites . , . . . . . . . . 520 



U.S.A.: Tomato Pests 521 



U.S.A.: The Striped Cucumber Beetle and its Control .. .. 521 



U.S.A. : Measures against Pieris rapae in Wisconsin . . . . 522 



U.S.A. : Cotton Pests in Alabama . . . . . . . . . . 522 



U.S.A. : Baits for the Argentine Ant. . . . . . . . . . 523 



U.S.A.: Measures against Ct/Zas /ormicari-MS in Alabama .. .. 523 



U.S.A. : Notes on Chalcids of the Genera Homalotylus and 



Isodromus . . , . . . . . . . . . . . . . 523 



U.S.A. Regulations respecting the Inspection and Transportation 



of Nursery Stock . . . . . . . . . . . . . . 524 



U.S.A. : Oargaphia tiliae infesting Limes in Philadelphia . . . . 533 



U.S.A. : Insect Pests in West Virginia in 1916-18 533 



U.S.A. : The Periodical Cicada in West Virginia 533 



U.S.A. : Measures against Sitotroga cerealella in Pennsylvania . . 543 



West Indies : Insect Pests in Antigua in 1917-18. . .. .. 512 



West Indies : Cacao Pests in Grenada . . . . . . . . 530 



West Indies : Pests of CiMis in Dominica. . . . . . . . 532 



The Relation of the Systematist to the Economic Worker in 



Entomology .. .. .. .. .. .. .. 516 



Comparisons of the Value of Insecticides . . . . . . . . 522 



The Transmission of Plant Diseases by Insects . . . . . . 528 



The Prevention of Heating'in Wheat by Means of Air-tight Storage 529 

 Descriptions of new Thysanoptera . . . . . . . . . • 534 



Plants used for Insecticides . . . . . . . . . . . . 543 



The Identity of Aphis crataegifoliae . . . . . • 543 



